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Each of the following is the square of an integer EXCEPT

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Each of the following is the square of an integer EXCEPT  [#permalink]

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New post 22 Jun 2020, 08:45
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A
B
C
D
E

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Re: Each of the following is the square of an integer EXCEPT  [#permalink]

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New post 22 Jun 2020, 09:05
Each of the following is the square of an integer EXCEPT

(A) 81 = √81 = 9 (Integer)

(B) 100 = √100 = 10 (Integer)

(C) 121 = √121 = 12 (Integer)

(D) 196 = √196 = 14 (Integer)

(E) 215 = √215 = 14.66 (Non Integer)

Answer is E

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Re: Each of the following is the square of an integer EXCEPT  [#permalink]

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New post 22 Jun 2020, 09:39
A - 81 = 9^2 Integer
B - 100 = 10^2 Integer
C - 121 = 11^2 Integer
D - 196 = 14^2 Integer
E - 215 = 14.66 Non Integer

Answer E
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Re: Each of the following is the square of an integer EXCEPT  [#permalink]

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New post 22 Jun 2020, 22:42
Bunuel wrote:
Each of the following is the square of an integer EXCEPT

(A) 81

(B) 100

(C) 121

(D) 196

(E) 215



Solution


    • We need to find which among the given answer choices is NOT the square of an integer.
    • Let’s look at the answer choices:
      o Option A : 81
         \(81 = 9^2\), square of an integer.
         So, we can eliminate Option A.
      o Option B : 100
         \(100 = 10^2\), square of an integer.
         So, we can eliminate Option B.
      o Option C : 121
         \(121 = 11^2\), square of an integer.
         So, we can eliminate Option C.
      o Option D = 196
         \(196 = 14^2\), square of an integer.
         So, we can eliminate Option D.
    • Hence, we are left with Option E only which must be the correct answer.

Thus, the correct answer is Option E.
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Re: Each of the following is the square of an integer EXCEPT   [#permalink] 22 Jun 2020, 22:42

Each of the following is the square of an integer EXCEPT

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